Ernest lxddeckens



E. LUDDECKENS.

OPERA 0R FIELD GLASS.

(No Model.)

Patented Aug. 9, 1892.

norms versus ca, mow-mum, wnnme'rou. n. c

UNITED STATES PATENT OFFICE.

ERNEST LUDDECKENS, LIEGNITZ, GERMANY.

OPERA OR FlELD GLASS.

SPECIFICATION forming part of Letters Patent No. 480,370, dated August9, 1892.

Application filed October 20, 1891. Serial No. 409,252. (No model.)

To all whom it may concern.-

Be it known that I, ERNEST LUDDEoKENs, a citizen of the Kingdom ofPrussia, residing at Liegnitz, in the Province of Silesia and Empire ofGermany, have invented certain new and useful Improvementsin Opera orField Glasses, of which the following is a specification.

This invention relates to an improvement in opera or field glasses, andmore particularly to the means for holding and supporting the same whenin use.

It consists in the various features of improvement more fully pointedout in the claims.

In the accompanying drawings, Figure 1 is an elevation of an opera orfield glass provided with my improvement. Fig. 2 is a longitudinalsection of the same, and Fig. 3 a cross-section on line on m, Fig. 2.

The letters d represent the usual lens-carrying tubes, connected by thethree perforated plates or cross-arms a c f, through which eX- tends theusual post- 9, having the adjustingnut g. To the upper arm a there issecured a nose-rest b, consisting of a plate adapted to rest upon thebridge of the nose. To the central arm 0 (and also to the lowermost armf, if desired) there is secured a finger-rest 6, consisting of a plateof sufficient width to afford a good hold for the fingers and thumb.

Both the parts Z) and 6 should be arranged on both sides of the glass,so that the latter may be used with either side up.

In large glasses, and especially field-glasses, I employ finger-restswhich consist of the open rings 6, laid around the tubes d. These ringsterminate in the outwardly-turned ends e placed to either side of postg. The outwardly-turned ends form convenient seats that receive the endsof the thumb and fingers. The rings 6 arefree to turn on the tubes (1,so that the rings may be placed in such a position that the tip of thethumb may readily reach its seat. Thus the device will adjust itself todifferently-sized hands.

What I claim is- 1. The combination of an opera or field glass Withrings e surrounding its tubes and having outwardly-turned ends 0substantially as specified.

2. The combination of an opera or field glass with nose-rest b and withrings 6, having outwardly-turned ends 6 substantially as specified.

In testimony whereof I hereunto sign my name, in the presence of twosubscribing witnesses, this 3d day of October, 1891.

ERNEST LUDDECKENS.

WVitnesses:

HELENE CRERWENKA, KAROLINE Focus.

